Galkhaite, (Hg,Cu,Tl,Zn) (As,Sb)S2, from the Getchell mine, Humboldt County, Nevada

Journal of Research of the U.S. Geological Survey
By: , and 

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Abstract

The first reported occurrence in the United States of galkhaite (Hg,Cu,Tl,Zn)(As,Sb)S2 is at the Getchell mine, Humboldt County, Nev. The mineral occurs as brownish-black cubes associated with graphite, pyrite, and realgar. In polished section galkhaite is grayish white and isotropic with a deep-red internal reflection; reflectivity at 590 nm is 21.6 percent. Spectrographic analysis gave Hg 42 percent, Cu 5 percent, Zn 1.5 percent, Fe 0.7 percent, Tl 5 percent, As 24 percent, Sb 0.3 percent, and S (by difference) 21.3 percent. The mineral is cubic, a=10.36, and the strong lines of the X-ray powder pattern are 2.99 (100), 4.21 (90), 2.76 (80), 1.831 (70), 7.25 (60), 2.58 (40), 1.561 (40). The pattern is very similar to that of tetrahedrite except for the strong lines at 7.25, 4.21, and 2.76.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Galkhaite, (Hg,Cu,Tl,Zn) (As,Sb)S2, from the Getchell mine, Humboldt County, Nevada
Series title Journal of Research of the U.S. Geological Survey
Volume 1
Issue 5
Year Published 1973
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description 3 p.
First page 515
Last page 517
Country United States of America
State Nevada
County Humboldt
Other Geospatial Getchell Mine
Online Only (Y/N) N
Additional Online Files (Y/N) N
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